Uninstall Android Studio completely

These are default locations as of Android Studio 1.0.2 and it is possible to change them by editing ..../android-studio/bin/idea.properties.

1. Delete the android-studio folder;
2. Delete the sdk folder if it is in not inside the android-studio directory;
3. Delete ~/.AndroidStudio, which contains config and system;
4. Delete ~/.android;
5. Delete ~/.local/share/applications/jetbrains-android-studio.desktop, if you created a shortcut using Configure->Create Desktop Entry.

Note: Add on to step#5 above - Sometimes the icon launcher can be in one of the following locations to:

/usr/share/applications
/usr/local/share/applications

If your launcher file is in any of the first two directories, you will require root permissions to remove it.

PPAs
A deeper step of removing Android Studio completely from your Linux Distribution would also include the removal of PPAs related to Android Studio.

In Ubuntu 16.04,

• Go to Software and Updates > Other Software
• Scroll down the list and select to find the ones related to Android-studio
• Click remove and authenticate

This helps stopping updates and the very annoying error message:
The package has not been installed. I can't find the archive for it.

To re-configure you have to delete the following (hidden) folders:

~/.android ~/.AndroidStudio

To show these hidden folders in the file manager press Ctrl+H when in your home directory (aka "~")

I would suggest to check the installation directory for a readme or an uninstall script but in general: do what you did to install it in reverse order and delete everything you added as a setting or as a file on your system related to that installation.

Installations done with a tar file are mosttimes uninstalled with the rm command. You go to the directory where you went for this: "Unpack the downloaded Tar file, android-studio-ide--linux.zip, into an appropriate location for your applications" and rm the files and directories created here.

If you did "You may want to add android-studio/bin/ to your PATH environmental" too you will need to undo this alteration by deleting android-studio/bin/ from the file you added this PATH too.

For people who installed Android Studio using Ubuntu make (umake android) you can simply uninstall it by running :

umake android --remove

After that just delete Android Studio's related folders in your /home folder :

rm -r ~/.AndroidStudio
rm -r ~/.android

Android Studio versions 4.0+ have built-in uninstall and replace functionality that uninstalls packages held in multiple locations by previous versions of Android Studio. Just run the installer of the latest Android Studio.

To uninstall the Android Studio snap package run the following command:

sudo snap remove android-studio

To uninstall a manually installed Android Studio .deb package search in /etc/apt/sources.list to check if there is a software source for a PPA for Android Studio, for example ppa:maarten-fonville/android-studio. If so, remove this PPA by running a command of the form sudo apt-add-repository --remove ppa:maarten-fonville/android-studio. The italicized text in the preceding command indicates that the name of the PPA can be changed if Android Studio was installed from a different PPA.

Then run the following commands:

sudo apt update 
sudo apt purge android-studio  
sudo apt autoremove  

These commands will remove Android Studio, remove the dependencies of Android Studio that are no longer required by other packages and will also purge all related system configuration files.